The withdrawal of international inspectors comes amid heightened concerns that Iran, battered by Israeli and U.S. strikes, may be driven to try to build a nuclear bomb.

Iran’s president has ordered the country to suspend its cooperation with the International Atomic Energy Agency after American airstrikes hit its most-important nuclear facilities.

U.N. nuclear inspectors on Friday departed from Iran two days after the Middle Eastern nation suspended cooperation with the program and weeks after the United States and Israel bombed nuclear sites.